The purpose of a balanced line is to transfer a "signal" from one place to another while rejecting "ground noise", which is not white noise or hiss, but power line related hum and buzz.

平衡传输线，是将信号从一个地方传到另一个地方的同时抑制“接地噪声”。

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She took another coin and balanced it next to the first, and then another, until she had a line of coins.

她又拿出了一枚硬币，放在第一枚硬币旁边维持平衡，然后又拿出一枚，直到有了一排硬币。

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The first line of their 1996 book on the balanced scorecard reads: “Imagine entering the cockpit of a modern jet airplane and seeing only a single instrument there.

他们1996年合著了一本关于平衡计分卡的书，该书第一行这样写道：“设想一下，你进入到一个现代喷气式飞机的座舱，结果发现只有一些工具在那里。”

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The press, which prides itself on skepticism, swallowed the balanced budget line whole.

FORBES: Swallowing the budget line whole

And he warned Congress to hold the line on spending so the budget can be balanced in 2005.

CNN: Bush: Economy hung over but sound

"We have selected a balanced team - we have a quality bowling atack and a good batting line-up with players who have performed on the international stage, " said chairman of selectors Clyde Butts.

BBC: Gayle returns as Windies skipper